This DENSO Iridium spark plug, part code PK16PR-L11, is designed to deliver superior ignition performance. The advanced iridium alloy ensures exceptional durability and a high melting point, allowing for a smaller electrode tip. This design promotes a stronger spark and improved fuel combustion, leading to enhanced engine power and better fuel economy. DENSO's commitment to quality means this spark plug is built to withstand demanding engine conditions. It provides reliable starting and smooth operation across a wide range of temperatures and loads. Replacing your spark plugs with DENSO Iridium can help maintain your engine's peak performance and reduce emissions.